Finding the Fourth Proportional to 13,143.51, 19,715.16 and 3,282.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,143.51 : 19,715.16 = 3,282.72 : x
2. Step 2: Convert to fraction form
   13,143.51/19,715.16 = 3,282.72/x
3. Step 3: Cross multiply
   13,143.51x = 19,715.16 × 3,282.72
4. Step 4: Simplify right side
   13,143.51x = 64,719,350.04
5. Step 5: Solve for x
   x = 64,719,350.04/13,143.51
6. Step 6: Final answer
   x = 4,924.05